Sample taking device



Aug. 9, 1932. F. G. KUNZ SAMPLE TAKING'DEVIGE Original Filed Jan. 16, 1930 S14/manto@ Wm/we Patented Aug. 9, 1932 P AflflaN'r? OFFICE 1mm e. xUNz.. or noUs'roN,

sAMrLE TAKING .DEVICE tem'ber 14, 1931. serial-fno. 562,658..

This -invention relates to a sample taking apparatus. p

One object of the invention is to provide apparatusof the character described where' by `samples of thecuttings from' the drill,

in well drilling, may be collected and carried to the ground surface for inspection.,

inthe provision of means whereby the said cuttings may be collected in a detachable receiver therefor, andthe receiver then detached and conveyed, by the drilling'luid, to the ground surface for inspection," in a substantially uncontaminated state.. f

The invention also comprehends a novel methodwhereby samples of the cuttings of the drill, in well' drilling, may be collectede and delivered to the ground surface.

With the above and other objects in view the invention has'particular relation to ceri1J Slidilbly 1110111119911 011 Saidtllbe above Said' tain novel features of'construction, operation and arrangement of parts, as well as to a` novel method, an example'of which is given in this specification and illustrated in the accompanying drawing, wherein:

Figure 1 shows a side view of the apparatiislocated in a welll bore.

Figure 2 shows avertical sectional viewof the sample collecting and` receiving apparatus.

Figure 3 shows a cross sectidnal view on `the line 3--3 ofJ Figure 2, and;

Figure 4 shows a cross sectionalview taken on the line 4-4 of Figure 2.

takenvv Referring now more particularly to the.

drawing wherein like numerals of reference designate similar parts in each of the 'iignres, the numeral 1 fdesignatesthe well bore .and the numeral 2 designates the tubular nates-'a drill, which may be of any preferred p type and which is connected tothe lower end the drill stem and out through the -ltelenifor abandoned application Serial No. 421,116, :tiled` January 16, 1930. Y This 'application led Sepcourses 5' and is retilrned upgtliroulghtle'well collar 4 there is a ltubular housing 6 w ich is clamped to the stem b'ya c1amp', as N .of

p any selected, type.

` The upper end ofthe housing Gais openv4 A further feature of the invention resides' and its lower end isclosed.1 Anchored td and extending downwardlyr through said closedflower/endS there is a' collecting tube -housinglthereisla plunger 10. ,A pressire chamber 11`is Ithus'formed within-,'thellower end of the ousing and the collector tube 9 has one or ore ports 12 through 'which uid may. pass f om said tube into said chamber.

plunger'. are the collapsiblel receivers, as 13, to receive the cuttings or/samples. Each receiver has an upper and a lower end-,`as 14 and 1"5, and whichlit slidably over the collect- .ing tubeJ 9 ,and inside the housing' 6. .These ends 14 and 1g are preferably made of mold?l ed rubber or other firm yet resilientnraterial molded in the shapes shown in the disch'argedreceiver 1t The upper and lowei` A endsvof the iexible walls of the receivers are 'attached to said respective ends 14 and 15;

Said walls are formed. of fabricor other suitable porous, flexible material. These re- .,ceigv'ers are detachably anchored in any ape proved manner. One method of detachably anchoring the receivers be hereinafter. explained. rllhe ring 16 is formedon'the.

upper end of the receiverend 14, andthe forming the. fingers 17 The zconic'alcenter of the lower end 15 is cut into gores forming the lingers 18, ofwhich twoopposite ones have the hooks 19. The plunger 10 has the ring 20`on its upper end similar to the receiver end .14. When fthe lower receiver is slipped over the collector tube 9 its lingers 18 are distended outwardly from the receiver and incase the ring 20 of the plunger 10'. Theingers 17 arespread inside thel'eceiver.` The succeeding receivers are similarly-fitted conical centerf the end 14 is cnt into, gores drill stem therein. The numeral 3 desig-IA over the tube 9 except thatlthe lower end fingers 18 incase the rings 16 of the receiver' ends 14. The upper receiver is installed with only the fingers 18 distended to receive the tube 9, with the end of the tube terminating `inside the receiver as shown in Figure 2.

The fingers 17 arein their originali-y formed position closing the receiver end 14:A to trap the cuttings in the corresponding receiver.

In use ythe receivers 13 are assembled as shown in Figure 2 on the upper end of the collector tube in collapsed position with {ingers 18 of lower receiver in retracted or withdrawn position and held in such position by the drill under pressure and passes .back upv through the'bore around said stem as hereinafter explained.- The cuttings from'the drill will be carried upwardly in this fluid' and a portion of the fluid will pass up- Y through the collector tube 9 vand will deposit solid cuttings in the upper collector 13, the uid passing on out through the walls and around the receiver end 14. of said upper receiver. The upper receiver will collect the solid cuttings which will eventually tend to retard the flow of fluid therethrough exert# -inga pressure simultaneously in said receiver 4o and in the chamber 11, due to a velocity head which equals the fluid velocity ,squared dividedby twice the acceleration due to gravity. 'Ihisl pressurewill force `the, as'sembled receivers upwardly, until the lower end\15 of 46 the 4filled receiver isprojecting above the end of thehousing 6 where it is dragged abouti by therptation of the drill stem causin the two fingers 18, having the hooks 19, to sli e'oif sideways from the ring 16 of` the` receiver y'50 beneath3-f- T he lingers 18 ofthe filled receiver then sprin 'inward to their originally formed` position c osmg the bottom end "of there-v 4ceiver and 'trapping thecutting's. At Ithe saine time thatthe filled receiver .end `15 -pio- S5rk jects-from the' housing/6,; Ith'e fingers/1'( of the receiver beneathslide o the end. of the tube 9 and spring into ytheir ori 'nally formed posltion, closig vThe discharg upperreceiver 13' willbe forced on upwardly by the current of fluid flowing upwardly through the bore as indicated in Figuresl, to the groundmg the 'next succeeding receiver beneath `in 'position to receive the cuttings from the upper lengl of the collector tube'. This'process up the end o said receiver.

urface leav-I will lbe repeated until all of the receivers are filled and discharged, and they will be carried, oneafter another, to the ground surface for inspection with the cuttings from the drill collected therein'in substantially Ian unontaminated state.

The cuttings thus obtained represent the formations in which the drilling has been taking place. The sacks, or receivers can be mar ed, showing their relative positions, and the respective locations of the formations drilled can then be determined since the time required for the receivers to reach the surface is known or can be readily ascertained. The supply of sacks, or receivers in the housing 6 can be replenished when the drill is brought to the surface.

The drawing and descriptions disclose what is now considered to be a preferred form of the invention by way of illustration only..

- 1. Apparatus for taking samples from a well bore including a drilling device for disintegrating the formation at the bottom of the bore and having a passage way for drilling fluid through which said fluid may be supplied to the bottom of thebore to carry the-'disintegrated formation out of the bore Amay be supplied to the-bottom of the^bore for flushing out the disintegrated formation and carrying the saine up through the bore around said stem', a receiver independent of, and car` ried by, and detachable' from the drilling device arranged to' collectd someof the dismtegrated formation passing upwardly in said fluid.

3. Apparatus for taking samples from a well bore including'a drilllng device for disintegrating the formation at the bottom ofthe bore and having a' passageway for drilling fluid through which said liuid maybe supplied to thebottom ofthe bore to carry the disintegrated formation out of the bore y around said drilling device, a detachable r'eceiver onf said drilling device arranged to intercept, and fconne someY of said disintegrated formationfand, when detached, to carry the same, in a collected massfto the ground surface, means for collecting a portion of said disintegratedformation land directing the same into said receiver. i

4. Apparatus for taking samples from a well bore including a drilling device for dis-i I 1,s71,sae

integrating the formation at the bottom of the bore and having a passageway for drilling fluid through which said iuid may be sulpplicd to the bottom of the bore to carry t e disintegrated formation out of the bore around said drilling device, a detachable receiver on said drilling device arranged to intercept and confine some of said disintegrated formation and, when detached, to carry the same, in a collected mass, to the ground surface, and means/'operable by the pressure of l said fluid and effective to detach said receiver, when loaded from said device, to permit the loaded receiver to be carried by the upwardly moving iuid to the ground surface.

5. Apparatus for taking .samples from a well bore which includes a drilling device comprising a tubular drill stem, and a drilling tool at the lower end of the stem, there being a passageway for drilling iuid leading out from the stem through which said fiuid may be supplied to the bottom of the bore for flushing out of the disintegrated formation and carrying the same up through the bore around said stem, a receiver carried by the drilling device arranged to collect some of the disintegrated formation passing upwardly in said fluid, said' receiver being arranged to be detached by the pressure of the fluid while the device is in the well bore, and a collector for diverting such formation into the receiver.

6. Apparatus for taking samples from a well bore which includes a drilling device comprising a tubular drill stem, and a drilling tool at the lower end ofthe stem, there being a passageway for drilling iuid leading out from the stem through which said iuid may be supplied to the bottom of the bore for flushing out the disintegrated formation and carrying the same up through the bore around said stem, a detachable receiver carried by the drilling device arranged to collect some of the disintegrated formation passing upwardly in saidluid, a collector for directing such formation, suspended in the fluid, into the receiver, and means operable by the pressure of Athe drilling fluid and effective to release the receiver from the drilling device to permit said receiver to move with said ,Huid to the ground surface.

7. A sample taking apparatus including a tubular drill stem adapted to be let down into a well bore, a drilling tool at the lower end thereof, there being a passageway for drilling fluid located so as to supply said fluid from said stem to the bottom ofthe bore to carry the cuttings from the drill up through the bore to the ground surface, an external, detachable receiver for the cuttings, independent of but attached to the stem adjacent y y 'the lower end thereof.

8. A sample taking apparatus including a tubular drill stem adapted to be let down` into a well bore, a drilling tool at the-lower fluid from said stem to the bottom of the bore to carry the cuttings from the drill up through the bore to the ground surface, an external receiver for the cuttings carried by the stem adjacent the lower end thereof, and means for dlrecting said cuttings held in suspension in the fluid, upwardly into said receiver.

9. A sample takingv apparatus including a tubular drill stem, adapted to be let down into a well bore, a drilling tool at the lower end thereof, there being a passageway 4for drilling fluid, located so as to supply said fluid from said stem to the bottom of the bore to carry the cuttings from the 'drill up throughl the bore to the ground surface, an external, detachable receiver for the cuttings incorporatedinto the apparatus adjacent the lower end thereof, and means operable by the pressure of said Huid and effective to release said receiver from the stem.

l0. A sample taking apparatus including a drill lstem adapted to be let down into a well bore, a drilling tool at the lower end thereof, a tubularV housing attached to the stem and open at one end and closed at its other end, a detachable receiver in said housing, a collectingtube through the closed end of said, stem, 'a housing attached to the stem,

a detachable receiver in the housing, means for collecting cuttings from said tool and'delivering same into said receiver, and means operable by fluid under pressure and effective to release said'receiver from said housing.

12. In a device of the character described a housin means for attaching the housing to a drilfstem, a collector tube anchored to the housing and whose upper end terminates therein, a plurality of collapsible receivers arranged, one above the other, on the tube, the upper end of said tube terminating in the upper receiver, said receivers being movable upward on said tube and detachable in succession therefrom.

In testimony whereof I have signed my name to this specification.

FRANK G. KUNZ. 

